Originally posted by ride5000 it seems to me that the logical extension of a WBO2 is to connect it directly to an ECU of some sort, and be able to input desired target AFR and simply sit back and let the ECU adjust fuel in closed loop--constantly.

is there such a system out there that does this, or has it yet to be invented/prototyped/tested/produced?

ken

There are several systems that do this. Look in the aftermarket ECU FAQ